Concerns about the environmental effect of anthropocentric greenhouse gas emissions and depletion global crude oil reserves are driving initiatives to discover renewable energy sources for transportation sector. Biodiesel derived from (vegetable animal fats) has been widely accepted as an adequate substitute petroleum-based diesel fuel in daily transport vehicles around world because it is a fu...

The problem of slow drilling in deep shale formations occurs worldwide causing significant expenses to the oil industry. Bit balling which is widely considered as the main cause of poor bit performance in shales, especially deep shales, is being drilled with water-based mud. Therefore, efforts have been made to develop a model to diagnose drilling effectivity. Hence, we arrived at graphical cor...

BACKGROUND AND PURPOSE Recent advances in data-processing techniques have allowed more accurate MR-based volumetric measurement than was possible in the past. The purpose of this study was to use this technique to evaluate the development of the temporal lobes in childhood. METHODS The study group consisted of 42 subjects aged 3 weeks to 14 years (mean age, 5 years), all with normal findings ...